Results 71 to 80 of about 468,934 (298)

The linear instability of the stratified plane Couette flow

, 2017
We present the stability analysis of a plane Couette flow which is stably stratified in the vertical direction orthogonally to the horizontal shear. Interest in such a flow comes from geophysical and astrophysical applications where background shear and ...
Bars, Michael Le, Facchini, Giulio, Favier, Benjamin, Gal, Patrice Le, Wang, Meng   +4 more
core   +3 more sources

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Corrosion and Process Analysis of a Preoxidized MgO Recyclate‐Based Cermet Anode in Laboratory‐Scale Na‐Cryolite Molten Salt Electrolysis of Aluminum at 1000°C

Advanced Engineering Materials, EarlyView.
EDX elemental map of the pre‐oxidized MgO–steel cermet anode cross section after electrolysis. The development of inert anodes for aluminum electrolysis remains challenging due to the high corrosivity of cryolite‐based melts at 950°C–1000°C. This study investigates the corrosion and process behavior of a carbon‐free MgO–steel cermet anode derived from ...
Alexander Adamczyk, Farhan Hossain, Felipe A. Garcia Paz, Serhii Yaroshevskyi, Felix Drechsler, Daniel Vogt, Christos G. Aneziris, Alexandros Charitos   +7 more
wiley   +1 more source

Particle Energization in 3D Magnetic Reconnection of Relativistic Pair Plasmas

, 2011
We present large scale 3D particle-in-cell (PIC) simulations to examine particle energization in magnetic reconnection of relativistic electron-positron (pair) plasmas.
Albright, B. J., Bowers, K. J., Li, Hui, Liang, E. P., Liu, Wei, Yin, Lin   +5 more
core   +1 more source

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Percutaneous iliosacral screw fixation in unstable pelvic fractures

The Pan African Medical Journal, 2017
Surgical treatment of unstable pelvic fractures Type C, has a vertical instability that is not controlled by traction and supine; therefore, orthopedic and functional treatments undertaken by default are sources of complications.
Hicham Bousbaa, Mohammed Ouahidi, Jamal Louaste, Mourad Bennani, Tawfiq Cherrad, Hassan Jezzari, El Houssine Kasmaoui, Khalid Rachid, Laarbi Amhajji   +8 more
doaj   +1 more source

Solid‐State Diffusion and Intermetallic Phase Formation in Roll‐Bonded Mg–Zn Composites With Kirigami‐Patterned Inlay

Advanced Engineering Materials, EarlyView.
Mg–Zn composites with a thickness of 0.21 mm were fabricated using roll bonding of a kirigami‐patterned Mg alloy inlay within a Zn matrix. Thermal activation following this process led to the formation of tailored intermetallic structures, which provided the composite with enhanced flexural strength.
Yaroslav Frolov, Oleksandr Bobukh, Christian Klose, Florian Nürnberger, Hans Jürgen Maier   +4 more
wiley   +1 more source

Onset of Convection Cells Within Insulated Building Walls

Energies
The linear stability of convection in a vertical two-layer porous structure representing a building external wall is studied. The wall is confined by two open vertical boundaries kept at different but uniform temperatures and is composed of two ...
Stefano Lazzari, Michele Celli, Antonio Barletta, Pedro Vayssière Brandão   +3 more
doaj   +1 more source

Identification and classification of weak layers in the snow

Лëд и снег, 2015
The paper considers the role of vertical snowpack structure for snow avalanche formation and describes the idea of «structural instability». It aims at enhancing the knowledge about transition mechanisms between stable and unstable states of snowpack and
E. S. Klimenko
doaj   +1 more source

Mechanisms of the Vertical Secular Heating of a Stellar Disk

, 2003
We investigate the nonlinear growth stages of bending instability in stellar disks with exponential radial density profiles.We found that the unstable modes are global (the wavelengths are larger than the disk scale lengths) and that the instability ...
A. Jenkins, A. Jenkins, A. M. Fridman, A. Toomre, A. Toomre, A. V. Zasov, B. Fuchs, C. G. Lacey, C. Hunter, D. Merrit, D. Pfenninger, E. A. Mikhailova, F. Combes, H. Velázquez, I. W. Walker, J. A. Sellwood, J. A. Sellwood, J. A. Sellwood, J. Barnes, J. Binney, J. Binney, J. Gerssen, J. Gerssen, J. P. Ostriker, L. Hernquist, L. Hernquist, L. Spitzer, L. Spitzer, M. Merrifield, N. Raha, N. Ya. Sotnikova, P. A. Patsis, P. J. Teuben, P. P. Parenago, R. M. Kulsrud, S. A. Rodionov, V. L. Polyachenko, V. Reshetnikov, W. C. Saslaw, W. Dehnen   +39 more
core   +1 more source